
Practice: Exponential Functions
Quiz
•
Mathematics
•
9th Grade
•
Medium
+2
Standards-aligned

Lauren Gibson
Used 4+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A new savings account is opened with $400 and gains 3% every year. How much money will be in the account after 10 years?
y =400(4)10
y =400(0.97)10
y =400(1.03)10
y =400(0.03)10
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is a, the starting term, for the function: 6500 = 300(1.16)x?
300
1.16
x
6500
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The following function represents a bank account.
g(x) = 200(1.25)5
What was the initial dollar amount put in the bank?
$200
$1.25
$0.25
$5.00
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ty's house is worth $100,000 right now. It will lose value at a rate of 2% every 2 years. How much will the house be worth in 10 years?
Which function models this situation?
y = 100,000(2)10
y = 100,000(1.02)2
y = 100,000(0.98)5
y=100,000(0.98)10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The following function represents a bank account.
g(x) = 200(1.25)x
What is the rate the bank is paying?
*Remember the rate is added or subtracted to 1 inside parenthesis*
200%
125%
25%
2%
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week. How much hair will she have after 6 weeks?
y=6(0.14)6
y=6(114)6
y=6(1.14)6
y=6(0.86)6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The following function represents a bank account.
g(x) = 200(1.25)x
What was the initial dollar amount put in the bank?
$200
$1.25
$0.25
$2.00
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